background color
Using Jamroom
Well, before you deleted everything, Douglas pointed out that your error logs said you hadn't managed to upload all the files successfully, so that's at least one thing that you are not doing. You do need to be able to upload all of the files.
You are deleting your database when you do the new install aren't you?
If not, you still need to delete that table like Michael said. Otherwise you are just reloading your same mistakes from the database over and over and over and over again.